Machine for producing rovings from fibrous materials



. e. TURK. MACHINE FOR PRODUCING ROVINGS FROM FIBROUS MATERIALS.

APPLICATION FILED NOV-M1919.

1,371,582; Patented Mar 15, 1921.

mural) STATES PATENT OFFICE.

GUSTAV Tenn, 0]? MEININGEN, GERMANY, ASSIGNOR TO THE FIRM 0F 'II'TRK GESELLSCHAIF'I M. B. 3., or HAMBURG, GERMANY.

MACHINE FOR PRODUCING ROVlINGS FROM FIBROUS MATERIALS.

Specification of Letters Patent.

Patented Mar. 15, 1921.

Application filed November 1 1919. Serial No. 335,223.

To all w 7mm it may concern Be it known that I, GUSTAV Tiimnsubjecl: of Germany, residing at Meiningen, Germany. have invented a certain new and useful Improvement in Machines for Producing Roving from Fibrous Materials, of which the following is a specification.

In producing rovings from fibrous material such as paper pulp a thin sheet of the material is tormed on a sieve and then divided into comparatively narrow strips, which after being partly dried are rolled or rounded into rovings by a number of rubbing machines which directly follow a roller press for depriving the fibrous strips from the water. at another place I have proposed to lead the rovings from such rubbing devices to the different rolling or collecting means by a number of endless aprons of varying lengths which directly follow the rubbing devices. Though machines constructed according to this principle proved to be a great success over other machines known heretofore, yet it has been'tound, that it was inconvenient for the attendant to get at the rubbing devices with the exception (a? the upper one. the space between the ditierent rubbing devices being comparativcly small. In the practical use it has been found that it is necessary that the devices are well. accessible.

In constructing a. machine of this kind it moreover of importance that care is taken largely tor a good distribution of the rounded threads coming from the rubbing devices, so that these can he with safety collected separately in the spooling or other collecting means, such as revolving cans and the like. 111 order to retain a good distribution of the threads and nevertheless make the bing devices well accessible according' CID to the present invention the rubbing devices are arranged at the delivery end of the en dless aprons instead of at their starting end. as I suggested originally. The fibrous strips formed on a sieve and pressed out by a roller press fed from the latter directly to endless aprons which lead them away to a number of rubbing devices situated separately at a considerable distance apart.

From these rubbing devices the rounded threads can be delivered directly to the rolling or collecting devices.

A machine constructed according to this invention is shown 1n the drawing diagram- 'matically in elevation.

In the construction shown two rubbing devices (4 and Z) are used which in known manner consist each of two endless rubber bands which not only have a longitudinal motion to lead the strips between them along but will also move laterally against one another to roll or rub the strips passed along. The fibrous strips formed on the cylindrical sieve c are deprived of their water by the roller-press (Z and from here are led away by the endless aprons 6. At the delivery end of the apron every second strip is'led to the rubbing device a and the rest are led to a second apron 7 leading them to the second rubbing device 6. If in a machine constructed according to this invention there would be three or more rubbing devices instead of two as shown the first rubbing device would not be fed by every second strip but by every third or fourth etc. as the case may be and by the following aprons the strips would be distributed according to the other rubbing devices. The rubbing devices a and Z), in which the fiber strips are rounded in known manner, can be arranged di rectly over the collecting or spooling devices. so that the rounded threads are collected here in any known manner. In the constructionshown spooling devices g are supposed to be used. I

Should there be waste strips falling oil from the endless aprons these can be led away laterally by specially arranged aprons It is evident that by the machine described above the rubbing devices a, 6 etc. are well accessible.

I claim:

Machine for producing rovings from paper pulp comprising a number of endless bands for leading the strips away from the GUSTAV TUB-K.

Witnesses HERMANN LANGHAMMER, RICHARD KEHL. 

